An internet facsimile apparatus (IFAX) can normally function even on a network managed by the HTTP protocol, in a system where an e-mail communicator receives e-mail from an IFAX according to the SMTP protocol, an HTML processor converts the e-mail data into an HTML data, an URL converter converts the destination address of the e-mail data into a URL format, and an HTML communicator transmits the HTML data to the converted URL according to the HTTP protocol.